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Silver from argentiferous lead is obtain...

Silver from argentiferous lead is obtained by

A

Pattinson's process

B

Parke's process

C

Cyanide process

D

Both `(a)` and `(b)`

Text Solution

Verified by Experts

The correct Answer is:
C
Cyanide process is used for gold and silver as follow
`4Ag +8NaCN +O_(2) +2H_(2)O rarr 4Na[Ag(CN)_(2)] +4NaOH`
`Ag_(2)S +4naCN rarr underset("Soddicyano arg e ntate" (1))(2Na[Ag(CN)_(2)]+Na_(2)S)`
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